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    User name R. Michaels

    Log entry time 17:22:49 on January 2,2001

    Entry number 53914

    keyword=DAQ L-arm config, detmap mods

    Three things to report:
    1. At present, the Left Spectrometer single-arm DAQ is ``working''
    (of course with several things still unplugged like A1,A2 and who knows
    what other small bugs). As usual, use RunControl on adaqs2 but select
    the configuration "lspect" (means Left Spectr.)
    2. The detector map was updated. These mods so far: a) Shower map from
    Armen. b) TDC 1875 moved to slot 3, scint plane S2 now occupies 9th thru 14th
    channels because discriminator inputs moved to accomodate new trigger definition.
    The ADC map didn't change because I moved cables at patch panel (it must be
    checked with data). Added 2 ADC 1881Ms to slots 22,23. Added 1 TDC 1877
    to slot 4. All fastbus modules in ROC2 (L-arm) now get their gates from the
    fastbus backplane and are ganged together in multiblock readout, with EXCEPTION
    of the lone TDC 1875. ROC3 (the FPP crate) does not exist anymore.
    3. Trigger mods. Both arms now define the main scintillator trigger as the simple
    overlap of S1 and S2 planes. First, the Left and Right PMTs of each paddle are
    AND'd (as before). Next, the OR of the 6 S1 paddles are formed. Similarly S2.
    Finally, an overlap of S1,S2.
    -----
    The R-arm trigger & DAQ not working yet.